A new simple technique for improving the random properties of chaos-based cryptosystems

Garcia-Bosque, M. (Universidad de Zaragoza) ; Pérez-Resa, A. (Universidad de Zaragoza) ; Sánchez-Azqueta, C. (Universidad de Zaragoza) ; Celma, S. (Universidad de Zaragoza)

Resumen: A new technique for improving the security of chaos-based stream ciphers has been proposed and tested experimentally. This technique manages to improve the randomness properties of the generated keystream by preventing the system to fall into short period cycles due to digitation. In order to test this technique, a stream cipher based on a Skew Tent Map algorithm has been implemented on a Virtex 7 FPGA. The randomness of the keystream generated by this system has been compared to the randomness of the keystream generated by the same system with the proposed randomness-enhancement technique. By subjecting both keystreams to the National Institute of Standards and Technology (NIST) tests, we have proved that our method can considerably improve the randomness of the generated keystreams. In order to incorporate our randomness-enhancement technique, only 41 extra slices have been needed, proving that, apart from effective, this method is also efficient in terms of area and hardware resources.

Idioma: Inglés

DOI: 10.1063/1.5017015

Año: 2018

Publicado en: AIP advances 8, 3 (2018), 035004 [10 pp]
ISSN: 2158-3226

Factor impacto JCR: 1.579 (2018)

Categ. JCR: MATERIALS SCIENCE, MULTIDISCIPLINARY rank: 202 / 293 = 0.689 (2018) - Q3 - T3
Categ. JCR: PHYSICS, APPLIED rank: 95 / 148 = 0.642 (2018) - Q3 - T2
Categ. JCR: NANOSCIENCE & NANOTECHNOLOGY rank: 75 / 94 = 0.798 (2018) - Q4 - T3

Factor impacto SCIMAGO: 0.504 - Physics and Astronomy (miscellaneous) (Q2) - Nanoscience and Nanotechnology (Q2)

Financiación: info:eu-repo/grantAgreement/ES/MEC/FPU14-03523
Financiación: info:eu-repo/grantAgreement/ES/MINECO-FEDER/TEC2014-52840-R
Financiación: info:eu-repo/grantAgreement/ES/MINECO-FEDER/TEC2017-85867-R

Tipo y forma: Artículo (Versión definitiva)

Área (Departamento): Proy. investigación JBA (Dpto. Ingeniería Electrón.Com.)
Área (Departamento): Área Electrónica (Dpto. Ingeniería Electrón.Com.)